OpenAI Launches GPT-5.6 Series, Regulatory Compliance Becomes Prerequisite for Frontier Models
OpenAI releases GPT-5.6 series with Sol achieving 96.7% SOTA on Terminal-Bench 2.1 via Ultra mode with sub-agent parallelism. Terra matches GPT-5.5 at half price, Luna for low-cost high-concurrency. Initial access limited to 20 trusted partners, subject to US government safety review.
